JUSTIN (Freddie Highmore) is a sweet-natured, curious young man who yearns for adventure and to become a knight like his grandfather, the great Sir Roland. But when his father, Reginald, forbids him from following his dream, Justin must take matters into his own hands and embarks on a quest that will test him to his limits. Along the way Justin faces many challenges, learns many lessons and when the time comes must push away all his fears to do what is right and just.